Panasonic CQ-CB9900U Operating Instructions Manual page 22

Troubleshooting
(continued)
Radio
Problem Possible cause
Poor reception or Antenna installation or wiring of
noise antenna cable is faulty.
No power is supplied to the
antenna amplifi er (when using a
fi lm antenna, etc.).
Unsatisfactory broadcast
conditions
No digital sound is There are no HD radio broadcast
output. stations.
Analog mode is selected.
Seeking takes too Digital seeking may take some
long. time.
The number of auto The number of receivable stations
preset stations are are less than 6.
less than 6.
Preset stations cannot The contact of the battery lead is
be stored. poor, or the battery lead is not
always powered.
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CQ-CB9900U
Possible solution
Check whether the antenna mounting
position and its wiring are correct.
In addition, check to see whether the
antenna ground is securely connected
to the chassis.
Check the wiring of the antenna
battery lead.
Receive and listen to the signals from
the station concerned in the analog
mode.
Move to an area where HD radio can
be received.
Select AUTO mode.
Change to auto seeking, and proceed
with seeking again.
Move to an area where receivable
stations number is maximum, and try
presetting.
Make sure that the battery lead is
connected securely, and preset
stations again.
CD/MP3/WMA
Problem Possible cause
No playback or disc The disc is inserted upside down.
ejected
There is a fl aw or foreign objects
on the disc.
The disc has unplayable formatted
data.
The unit plays back the ROM track
of a mix mode CD.
The CD-R/RWs that The playability of some CD-R/RWs
are playable on may depend on the combination
other devices are not of media, recording software
playable on this unit. and recorder to be used even if
these CD-R/RWs are playable on
other devices such as a personal
computer.
Sound skipping or There is a fl aw or foreign objects
noise on the disc.
Sound skipping due to The unit is not suffi ciently secured. Secure the unit to the console box
vibration
The unit is tilted at over 30° in the
front-to-end direction.
Disc unejectable A label is peeled off from the CD in
the unit.
The microcontroller in the unit
operates abnormally due to noise
or other factors.
Note:
≥ Refer to the section on "Notes on MP3/WMA" (page 26).
Possible solution
Insert a disc correctly.
Remove the foreign objects, or use a
fl awless disc.
Refer to the description about
MP3/WMA for playable sound data
except CD-DA (i.e. music CD).
Skip the ROM track.
Make CD-R/RWs in different
combination of media, recording
software and recorder after referring
to the description about MP3/WMA.
Remove the foreign objects, or use a
fl awless disc. For MP3/WMA, refer to
the description about MP3/WMA.
with the rear support strap, etc.
Make the angle 30° or less.
Refer repair to the dealer where you
purchased the unit.
Unplug the power cord and plug it
again. In case the unit is still out of
order, consult the dealer.
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CQ-CB9900U